Transition metal and base free synthesis of 2-aryl-2-oxazolines from aldehydes and β-amino alcohols catalysed by potassium iodide
作者:C. Uma Maheswari、G. Sathish Kumar、M. Venkateshwar
DOI:10.1039/c4ra08578g
日期:——
Synthesis of 2-aryl-2-oxazolines from β-amino alcohols and aldehydes was achieved in good to excellent yield by employing a potassium iodide (KI)–tert-butyl hydroperoxide (TBHP) catalytic system.
An efficient one-pot synthesis of 2-oxazolines with molecular iodine under ultrasound irradiation
作者:Nan Xiao、Sen Hao Wang、Ai Ying Zhang、Hong Yang Li、Peng Wang、Wei Li、Bao Hua Chen、Guo Feng Chen、Na Li
DOI:10.1007/s11164-015-1961-1
日期:2015.12
A series of 2-oxazolines were prepared by the condensation of aldehydes with 2-aminoethanol in the presence of molecular iodine and potassium carbonate in t-BuOH at 35–40 °C under ultrasound irradiation. The easy work-up procedure and moderate to good yields are the advantages of this methodology.
An efficient catalytic protocol based on reusable MgAl-layered double hydroxides has been developed for the synthesis of multi-functionalized oxazolines via the cyclocondensation of amidines and aminoalcohols. The developed method has a broad substrate scope and excellent functionalgroup tolerance and uses a reusable catalyst. The catalyst can be conveniently recycled by filtration and reused for
A simple synthesis of 2-substituted oxazolines and oxazines
作者:Agnieszka Cwik、Zoltán Hell、Adrienn Hegedüs、Zoltán Finta、Zoltán Horváth
DOI:10.1016/s0040-4039(02)00723-2
日期:2002.5
beta-Aminoalcohols react with carboxylic acids in the presence of a zeolite, Ersorb-4, resulting in the formation of oxazoline derivatives in good yields. Similarly, 3-aminopropanol and benzoic acid gave the corresponding 2-phenyloxazine. (C) 2002 Elsevier Science Ltd. All rights reserved.